US20030110819A1 - Reversible spring-loaded lock slide - Google Patents
Reversible spring-loaded lock slide Download PDFInfo
- Publication number
- US20030110819A1 US20030110819A1 US10/025,297 US2529701A US2003110819A1 US 20030110819 A1 US20030110819 A1 US 20030110819A1 US 2529701 A US2529701 A US 2529701A US 2003110819 A1 US2003110819 A1 US 2003110819A1
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- US
- United States
- Prior art keywords
- lock
- slide
- tray
- lock slide
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B13/00—Devices preventing the key or the handle or both from being used
- E05B13/002—Devices preventing the key or the handle or both from being used locking the handle
- E05B13/004—Devices preventing the key or the handle or both from being used locking the handle by locking the spindle, follower, or the like
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B1/00—Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
- E05B1/0092—Moving otherwise than only rectilinearly or only rotatively
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C3/00—Fastening devices with bolts moving pivotally or rotatively
- E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
- E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
- E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
- E05C3/042—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted the handle being at one side, the bolt at the other side or inside the wing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S292/00—Closure fasteners
- Y10S292/30—Latch and handle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5093—For closures
- Y10T70/5155—Door
- Y10T70/5199—Swinging door
- Y10T70/5372—Locking latch bolts, biased
- Y10T70/5385—Spring projected
- Y10T70/5389—Manually operable
- Y10T70/5394—Directly acting dog for exterior, manual, bolt manipulator
- Y10T70/5398—Related dog for interior, manual, bolt manipulator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5611—For control and machine elements
- Y10T70/5757—Handle, handwheel or knob
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5611—For control and machine elements
- Y10T70/5757—Handle, handwheel or knob
- Y10T70/5765—Rotary or swinging
- Y10T70/577—Locked stationary
Definitions
- the present invention relates generally to lock slides, and relates more particularly to a reversible spring-loaded lock slide.
- Doorknobs and latch handles are well known in the prior art for providing a mechanism by which a user can open or close a door or cabinet.
- handle assemblies are provided with a handle that can be rotated by the user.
- a lock cam may be provided, being attached to a shaft connected to the handle. This lock cam has a latching arm extending therefrom that rotates into or out of an opening in a door jamb.
- handle assemblies can also be used in opening cabinets, drawers, or for other similar applications.
- Handle assemblies need to be connected to the cabinet or door. Also, the latching arm on the lock cam needs to be positioned so that it will enter an opening in the door jamb or wall. When engaged in this opening, pulling on the handle will not open the cabinet or door because the latching arm will catch on the door jamb and prevent motion. When the latching arm is swung out from this opening, nothing impedes its motion and the door can be freely swung or slid into the open position.
- T-handle and D-ring handle door latches are typically employed on emergency vehicles, such as fire engines and ambulances, due to their relatively simple but reliable mechanisms, and their attractive appearance and aerodynamic shape.
- These handle assemblies have the handle positioned inside of a recess in the surface of the vehicle. A user will generally rotate the handle in one plane so that it is no longer positioned inside of the recess. Next, the user will rotate the handle in a perpendicular plane that will result in the door being opened.
- a door latch which is representative of the prior art is a locking, folding, T-handle door latch produced by Hansen International of Columbia, S.C.
- the prior art provides a handle assembly that makes use of a locking cylinder to lock a lock cam in place
- the prior art does not provide a way to use the same locking cylinder in a handle assembly when the depth of the tray is made shallower or deeper.
- the prior art would require a newly sized locking cylinder to be used if the location of the tray or lock slide were changed.
- the prior art requires a newly sized tray and/or lock slide to be used if the length of the lock cylinder is varied.
- the present invention overcomes these deficiencies by providing a reversible spring-loaded lock slide that can compensate for size changes in the lock cylinder, tray, and/or lock slide.
- a handle assembly is provided.
- the handle assembly is composed of a tray that has opposite sides.
- a shaft is provided that rotatably extends through the tray.
- a handle is connected to the shaft so as to rotate the shaft relative to the tray, and the handle is on one side of the tray.
- a lock cam is on an opposite side of the tray.
- the lock cam is connected to the shaft so as to rotate with the shaft relative to the tray.
- the lock cam has at least one lock slide opening.
- a reversible spring-loaded lock slide assembly having a lock slide is present.
- the lock slide has a body with an end movable into the lock slide opening to lock the lock cam.
- the lock slide has a contact member extending substantially perpendicular to the lock slide body on one end of the lock slide.
- the lock slide is mountable within the lock slide assembly in two orientations.
- a spring is provided in order to bias the lock slide in an unlocking direction.
- a lock arm is engageable with the contact member of the lock slide. Engagement of the lock arm with the contact member urges the lock slide in a locking direction.
- Another aspect of the invention may include a handle assembly as discussed above further having a lock cylinder that engages the lock arm. Rotation of the lock cylinder causes the lock arm to rotate.
- a further configuration of the invention may include a handle assembly as discussed above wherein the contact member of the lock slide has a planar surface.
- the invention may include a handle assembly as discussed above further including a spring-loaded slide case attached to one side of the tray.
- the lock slide is in sliding engagement with the spring-loaded slide case.
- One end of the spring contacts the spring-loaded slide case.
- a reversible spring-loaded lock slide assembly for use in locking a door latch.
- This lock slide assembly includes a spring-loaded slide case.
- a lock slide is placed in sliding engagement with the spring-loaded slide case.
- the lock slide has a contact member located at one end, and is capable of being placed in two orientations.
- the lock slide also has a first cavity and a second cavity.
- a spring is provided to bias the lock slide relative to the spring-loaded slide case.
- a handle assembly for use in opening a compartment.
- the handle assembly includes a tray having opposite sides with a shaft rotatably extending through the tray.
- a handle is connected to this shaft in order to provide the rotational movement.
- the handle is located on one side of the tray.
- a lock cam is connected to the shaft so as to rotate with the shaft relative to the tray.
- the lock cam being on an opposite side of the tray.
- the lock has at least one lock slide opening.
- a spring-loaded slide case is connected to the tray.
- a reversible spring-loaded lock slide assembly is provided. The lock slide is moveable into the lock slide opening in order to lock the lock cam.
- the lock slide assembly has a lock slide that has a body with an end movable into the lock slide opening in order to lock the lock cam.
- the lock slide has at least two cavities and has a contact member at one end.
- the lock slide is in sliding engagement with the spring-loaded slide case, and is capable of engaging the spring-loaded slide case in two orientations.
- a spring that is used to bias the lock slide relative to the spring-loaded slide case.
- a lock arm that has a cam surface is provided. The cam surface is engageable with the contact member of the lock slide. Engagement of the lock arm with the lock slide causes the lock slide to be urged in a direction opposite to the bias of the spring.
- Another aspect of the present invention includes the handle assembly as described above further including a lock cylinder that engages the lock arm. Rotation of the lock cylinder causes the lock arm to rotate.
- the invention includes an embodiment of the handle assembly as described above wherein the contact member of the lock slide has a planar surface.
- Yet another aspect of the present invention includes an embodiment of the handle assembly described above wherein the spring is contained within one of the cavities and engages the spring loaded slide case at one end of the spring. The spring biases the lock slide away from the lock slide openings.
- FIG. 1 is a back view of a D-ring handle assembly using an embodiment of a lock slide assembly according to certain aspects of the present invention.
- the drawing shows the lock cam of the lock slide assembly in a locked position.
- FIG. 2 is a partial sectional side view of the handle assembly taken along line 2 - 2 in FIG. 1 with only the tray portion in section for clarity.
- FIG. 3 is a close-up view of the lock slide assembly shown in FIG. 1.
- the drawing shows the lock slide and the lock arm in both a locked (dotted lines) and an unlocked (solid lines) position.
- FIG. 4 is an exploded perspective view of an embodiment of a lock slide assembly of the present invention.
- FIG. 5 is a back view of an alternate D-ring handle assembly having a lock cam having four lock slide openings.
- FIG. 6 is a partial sectional side view of the handle assembly taken along line 6 - 6 of FIG. 5, with only the tray portion in section for clarity.
- FIG. 7 is a back view of an alternate folding-T handle assembly using an embodiment of a lock slide assembly according to certain aspects of the present invention. The drawing shows the lock cam in a locked position.
- FIG. 8 is a partial sectional side view taken along line 8 - 8 of FIG. 7, with only the tray portion in section for clarity.
- FIG. 1 shows one example of a handle assembly indicated generally at 10 for use in opening a door or cabinet in accordance with certain aspects of the present invention.
- the handle assembly 10 includes a tray 12 having optional tray holes 22 disposed about a surface of tray 12 .
- the tray holes 22 may be used to mount the tray 12 onto a door or other compartment.
- the surface of tray 12 having tray holes 22 is either flush with the surface that the tray 12 is attached to, or lies just on top of the surface.
- Such a tray 12 is often used in many applications due to its attractive and modular appearance.
- the handle assembly includes a latching arm 20 that is swung inside of a hole in a door jamb. Once inserted into such a hole, the door onto which the handle assembly 10 is attached cannot be opened. Additionally, latching arm 20 can be configured to prevent the door from opening by contacting a flange in a certain position or by its incorporation with other mechanisms.
- the latching arm 20 is connected to a lock cam 18 . If lock cam 18 is prevented from moving, it necessarily follows that latching arm 20 is also prevented from moving due to its connection to lock cam 18 .
- Lock cam 18 is connected to a shaft 14 by a nut 16 . Shaft 14 rotates relative to tray 12 , so lock cam 18 therefore can rotate relative to tray 12 . As shown, lock cam 18 is provided with two lock slide openings 24 .
- a reversible spring-loaded lock slide 28 is configured to move into one of the lock slide openings 24 . Once the lock slide 28 is inside, lock cam 18 is prevented from moving due to the contact with an end 33 of the lock slide 28 .
- the lock cam 18 is provided with two stops 29 in order to allow for only 90 degrees of rotation of the lock cam 18 . Of course, lock cam 18 can be configured without these two stops 29 in order to allow the lock cam 18 to rotate 360 degrees, and with any number or spacing of openings 24 .
- Handle assembly 10 also includes a compression spring 36 that biases lock slide 28 in an unlocking direction. Both spring 36 and lock slide 28 are at least partially contained within spring-loaded slide case 38 . Lock slide 28 is moveable relative to the spring-loaded slide case 38 . Spring-loaded slide case 38 is attached to tray 12 via two rivets 26 . The spring 36 is configured within lock slide 28 and contacts spring-loaded slide case 38 at a flange 54 extending from slide case 38 . Spring 36 biases lock slide 28 into a position away from the lock cam 18 . In such a fully biased position, lock slide 28 is completely removed from the lock slide openings 24 and hence lock cam 18 is free to rotate relative to tray 12 , at least within the limits of stops 29 . When spring 36 is compressed, lock slide 28 may move into one of the lock slide openings 24 . Such a situation results in lockage of lock cam 18 .
- FIG. 1 The mechanism used to compress spring 36 is shown in FIG. 1 as lock arm 30 .
- Lock arm 30 is connected to and rotates with lock cylinder 32 .
- Lock cylinder 32 is connected to tray 12 by nut 34 .
- Actuation of the lock cylinder 32 causes lock arm 30 to rotate. Rotation towards a planar surface on lock slide 28 eventually results in contact between the two. Further rotation results in a compression of spring 36 and movement of lock slide 28 towards the lock cam 18 .
- a lock slide opening 24 is aligned with the lock slide 28 , the lock slide 28 will enter the lock slide opening 24 and lock the handle assembly.
- Rotation of the lock arm 30 away from the planar surface of lock slide 28 causes the lock slide 28 to move linearly away from lock cam 18 . This eventually results in the lock slide 28 being removed from the lock slide opening 24 and hence allows the lock cam 18 and latching arm 20 to rotate.
- FIG. 2 shows a partial sectional side view taken along line 2 - 2 of FIG. 1.
- Latching arm 20 is shown as having a curved section, although it is to be understood that the latching arm 20 may be of various configurations.
- Lock cam 18 is attached to the shaft 14 by a nut 16 and washer 46 combination.
- the handle 40 shown in FIG. 2 is a D-shaped handle having a section being angled away from the tray 12 .
- a handle connection arrangement 42 is shown being used to attach handle 40 to the shaft 14 .
- Handle 40 can be rotated away from tray 12 out of the compartment in tray 12 and then rotated about the shaft.
- a handle biasing assembly 44 is provided to allow for a smooth outward movement and rotation of handle 40 .
- a handle biasing assembly 44 is also used to properly space the lock cam 18 from tray 12 .
- FIG. 3 shows an enlarged view of the lock slide assembly of FIG. 1.
- FIG. 3 shows the lock cam 18 in both a locked and an unlocked arrangement. Shown in solid lines, when the lock arm 30 is rotated away from the lock cam 18 the lock slide 28 also moves away from lock cam 18 due to the spring 36 biasing force until the lock slide 28 contacts flange 54 . In such an arrangement, lock cam 18 is free to rotate relative to tray 12 . Shown in phantom lines, when the lock arm 30 is rotated towards the lock cam 18 , the lock slide 28 is forced into lock slide opening 24 . In such a configuration spring 36 is compressed. Lock slide 28 is shown in phantom lines being placed inside of lock slide opening 24 and hence locking the lock cam 18 and preventing it from rotating relative to tray 12 .
- FIG. 4 shows an exploded perspective view of the reversible spring-loaded lock slide assembly 46 of the present invention.
- Lock slide 28 is shown as having two cavities 48 .
- a wall 50 separates these two cavities 48 .
- a contact member 52 is provided at one end of lock slide 28 and contacts both the wall 50 and also the two cavities 48 .
- a spring-loaded slide case 38 is provided with two holes 39 . Rivets 26 are inserted into these two holes 39 to connect the spring-loaded slide case 38 to another structure.
- Spring 36 is housed within one of the cavities 48 . Spring 36 is engaged on one end against contact member 52 and on the other end against flange 54 .
- lock arm 30 engages the lock slide 28 at the contact member 52 .
- This engagement occurs at one end of the contact member 52 . If it were the case that lock cylinder 32 were longer it could be the case that lock arm 30 would not engage contact member 52 at all.
- the present invention allows for a user to reconfigure the reversible spring-loaded lock slide assembly 46 so that the lock arm 30 engages contact member 52 of the lock slide 28 . This adjustment is found by way of inverting the position of the lock slide 28 and positioning the spring 36 within the second cavity 48 . As can be seen from FIG.
- FIG. 5 shows an alternative embodiment of the handle assembly for use in opening a compartment of the present invention.
- the drawing shows a back view of such an assembly.
- the handle assembly of FIG. 5 differs from the handle assembly of FIG. 1 in that the lock cam 18 and shaft 14 are slightly different.
- Lock cam 18 is here provided with four lock slide openings 24 .
- Shaft 14 is different in that it provides for a lock key 60 to attach the lock cam 18 to shaft 14 .
- this attachment arrangement consists of a nut 16 being used to attach shaft 14 to lock cam 18 .
- FIG. 6 is a partial sectional side view of the handle assembly of FIG. 5 taken along line 6 - 6 of FIG. 5.
- the handle 40 is shown in this drawing as a D-ring handle.
- the D-ring handle 40 is connected to the shaft 14 through a connection arrangement 42 .
- a lock cam spacer 56 is provided to appropriately space the lock cam 18 from tray 12 .
- a key 58 is shown inserted into lock cylinder 32 in order to actuate lock cylinder 32 and hence rotate lock arm 30 .
- Engagement of lock arm 30 with lock slide 28 causes the lock slide 28 to move into or out of one of the four lock slide openings 24 .
- the position of lock slide 28 is the same, relative to the slide case 38 , in FIGS. 2 and 6.
- FIG. 7 is an alternative embodiment of the handle assembly of the present invention.
- Latching arm 20 is shown in this drawing as being a single arm extending from lock cam 18 .
- the latching arm in FIG. 7 does not have a curved section.
- a lock key 60 is used in place of the nut 16 to attach the lock cam 18 onto shaft 14 .
- the lock slide assembly used in FIG. 7 is similar to that discussed in the previous embodiments, although the position of lock slide 28 is reversed.
- FIG. 8 shows a partial sectional side view of the handle assembly of FIG. 7 taken along line 8 - 8 of FIG. 7.
- the handle 40 used in this embodiment is a folding T-lock handle. Such a handle rotates about the connection 42 to shaft 14 .
- Connection 42 is shown in this drawing as a pin which allows the folding T-lock handle 40 to rotate out of the tray 12 . Once rotated out, folding T-lock handle 40 can be rotated by a user.
- a handle biasing assembly 44 is provided to allow for a smooth removal and rotation of the folding T-lock handle 40 .
- the reversible spring-loaded lock slide assembly 46 is reversed in the embodiment shown in FIG. 8 from that embodiment shown in FIG. 6. This is due to the fact that lock arm 30 does not extend past the recess in tray 12 in FIG. 8. Reversal of the lock slide 28 allows the lock arm 30 to engage the contact member 52 . As can be seen, the same reversible spring-loaded lock slide assembly 46 can be used on different assemblies having various locations of the lock arm 30 and lock cam 18 (due to the depth of the recess in tray 12 ). Using the same assembly 46 on different handles allows for a more economical, modularized, and uniform product.
Abstract
A reversible spring loaded lock slide assembly for use in locking a door latch is provided. The assembly includes a spring loaded slide case. A lock slide is in sliding engagement with the spring loaded slide case and has a first and second cavity. The lock slide has a contact member at one end and is capable of being placed in two orientations. A spring biases the lock slide relative to the spring loaded slide case.
Description
- The present invention relates generally to lock slides, and relates more particularly to a reversible spring-loaded lock slide.
- Doorknobs and latch handles are well known in the prior art for providing a mechanism by which a user can open or close a door or cabinet. Often, such handle assemblies are provided with a handle that can be rotated by the user. A lock cam may be provided, being attached to a shaft connected to the handle. This lock cam has a latching arm extending therefrom that rotates into or out of an opening in a door jamb. In addition to doors, handle assemblies can also be used in opening cabinets, drawers, or for other similar applications.
- Handle assemblies need to be connected to the cabinet or door. Also, the latching arm on the lock cam needs to be positioned so that it will enter an opening in the door jamb or wall. When engaged in this opening, pulling on the handle will not open the cabinet or door because the latching arm will catch on the door jamb and prevent motion. When the latching arm is swung out from this opening, nothing impedes its motion and the door can be freely swung or slid into the open position.
- Mechanisms used to lock the lock cam of a handle assembly in a position and hence prevent the door or cabinet from being opened are known in the prior art. Typically, a lock slide is moved into an opening in the lock cam. The lock cam is prevented from rotating due to the presence of the lock slide. The lock slide itself is prevented from moving due to its connection with a lock cylinder having a key a user may turn. Turning of the key results in linear movement of the lock slide out of the opening in the lock cam, and hence allows the door to be opened.
- T-handle and D-ring handle door latches are typically employed on emergency vehicles, such as fire engines and ambulances, due to their relatively simple but reliable mechanisms, and their attractive appearance and aerodynamic shape. These handle assemblies have the handle positioned inside of a recess in the surface of the vehicle. A user will generally rotate the handle in one plane so that it is no longer positioned inside of the recess. Next, the user will rotate the handle in a perpendicular plane that will result in the door being opened. A door latch which is representative of the prior art is a locking, folding, T-handle door latch produced by Hansen International of Columbia, S.C.
- Although the prior art provides a handle assembly that makes use of a locking cylinder to lock a lock cam in place, the prior art does not provide a way to use the same locking cylinder in a handle assembly when the depth of the tray is made shallower or deeper. The prior art would require a newly sized locking cylinder to be used if the location of the tray or lock slide were changed. Additionally, the prior art requires a newly sized tray and/or lock slide to be used if the length of the lock cylinder is varied. The present invention overcomes these deficiencies by providing a reversible spring-loaded lock slide that can compensate for size changes in the lock cylinder, tray, and/or lock slide.
- Objectives and advantages of the invention will be set forth in part in the following description, or may be obvious from the description, or may be learned through practice of the invention.
- According to one aspect of the invention, a handle assembly is provided. The handle assembly is composed of a tray that has opposite sides. Also, a shaft is provided that rotatably extends through the tray. A handle is connected to the shaft so as to rotate the shaft relative to the tray, and the handle is on one side of the tray. A lock cam is on an opposite side of the tray. The lock cam is connected to the shaft so as to rotate with the shaft relative to the tray. The lock cam has at least one lock slide opening.
- A reversible spring-loaded lock slide assembly having a lock slide is present. The lock slide has a body with an end movable into the lock slide opening to lock the lock cam. The lock slide has a contact member extending substantially perpendicular to the lock slide body on one end of the lock slide. The lock slide is mountable within the lock slide assembly in two orientations. A spring is provided in order to bias the lock slide in an unlocking direction. A lock arm is engageable with the contact member of the lock slide. Engagement of the lock arm with the contact member urges the lock slide in a locking direction.
- Another aspect of the invention may include a handle assembly as discussed above further having a lock cylinder that engages the lock arm. Rotation of the lock cylinder causes the lock arm to rotate.
- A further configuration of the invention may include a handle assembly as discussed above wherein the contact member of the lock slide has a planar surface.
- Also, the invention may include a handle assembly as discussed above further including a spring-loaded slide case attached to one side of the tray. The lock slide is in sliding engagement with the spring-loaded slide case. One end of the spring contacts the spring-loaded slide case.
- In another aspect of the present invention, a reversible spring-loaded lock slide assembly for use in locking a door latch is provided. This lock slide assembly includes a spring-loaded slide case. Also, a lock slide is placed in sliding engagement with the spring-loaded slide case. The lock slide has a contact member located at one end, and is capable of being placed in two orientations. The lock slide also has a first cavity and a second cavity. A spring is provided to bias the lock slide relative to the spring-loaded slide case.
- Also according to another aspect of the present invention, a handle assembly for use in opening a compartment is provided. The handle assembly includes a tray having opposite sides with a shaft rotatably extending through the tray. A handle is connected to this shaft in order to provide the rotational movement. The handle is located on one side of the tray. A lock cam is connected to the shaft so as to rotate with the shaft relative to the tray. The lock cam being on an opposite side of the tray. The lock has at least one lock slide opening. A spring-loaded slide case is connected to the tray. Also, a reversible spring-loaded lock slide assembly is provided. The lock slide is moveable into the lock slide opening in order to lock the lock cam. The lock slide assembly has a lock slide that has a body with an end movable into the lock slide opening in order to lock the lock cam. The lock slide has at least two cavities and has a contact member at one end. The lock slide is in sliding engagement with the spring-loaded slide case, and is capable of engaging the spring-loaded slide case in two orientations. Also provided is a spring that is used to bias the lock slide relative to the spring-loaded slide case. Additionally, a lock arm that has a cam surface is provided. The cam surface is engageable with the contact member of the lock slide. Engagement of the lock arm with the lock slide causes the lock slide to be urged in a direction opposite to the bias of the spring.
- Another aspect of the present invention includes the handle assembly as described above further including a lock cylinder that engages the lock arm. Rotation of the lock cylinder causes the lock arm to rotate.
- Also, the invention includes an embodiment of the handle assembly as described above wherein the contact member of the lock slide has a planar surface.
- Yet another aspect of the present invention includes an embodiment of the handle assembly described above wherein the spring is contained within one of the cavities and engages the spring loaded slide case at one end of the spring. The spring biases the lock slide away from the lock slide openings.
- FIG. 1 is a back view of a D-ring handle assembly using an embodiment of a lock slide assembly according to certain aspects of the present invention. The drawing shows the lock cam of the lock slide assembly in a locked position.
- FIG. 2 is a partial sectional side view of the handle assembly taken along line2-2 in FIG. 1 with only the tray portion in section for clarity.
- FIG. 3 is a close-up view of the lock slide assembly shown in FIG. 1. The drawing shows the lock slide and the lock arm in both a locked (dotted lines) and an unlocked (solid lines) position.
- FIG. 4 is an exploded perspective view of an embodiment of a lock slide assembly of the present invention.
- FIG. 5 is a back view of an alternate D-ring handle assembly having a lock cam having four lock slide openings.
- FIG. 6 is a partial sectional side view of the handle assembly taken along line6-6 of FIG. 5, with only the tray portion in section for clarity.
- FIG. 7 is a back view of an alternate folding-T handle assembly using an embodiment of a lock slide assembly according to certain aspects of the present invention. The drawing shows the lock cam in a locked position.
- FIG. 8 is a partial sectional side view taken along line8-8 of FIG. 7, with only the tray portion in section for clarity.
- Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, and not meant as a limitation of the invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield still a third embodiment. It is intended that the present invention include such modifications and variations.
- Referring now to the drawings, FIG. 1 shows one example of a handle assembly indicated generally at10 for use in opening a door or cabinet in accordance with certain aspects of the present invention. The
handle assembly 10 includes atray 12 having optional tray holes 22 disposed about a surface oftray 12. The tray holes 22 may be used to mount thetray 12 onto a door or other compartment. The surface oftray 12 having tray holes 22 is either flush with the surface that thetray 12 is attached to, or lies just on top of the surface. Such atray 12 is often used in many applications due to its attractive and modular appearance. - The handle assembly includes a latching
arm 20 that is swung inside of a hole in a door jamb. Once inserted into such a hole, the door onto which thehandle assembly 10 is attached cannot be opened. Additionally, latchingarm 20 can be configured to prevent the door from opening by contacting a flange in a certain position or by its incorporation with other mechanisms. The latchingarm 20 is connected to alock cam 18. Iflock cam 18 is prevented from moving, it necessarily follows that latchingarm 20 is also prevented from moving due to its connection to lockcam 18.Lock cam 18 is connected to ashaft 14 by anut 16.Shaft 14 rotates relative totray 12, so lockcam 18 therefore can rotate relative totray 12. As shown,lock cam 18 is provided with twolock slide openings 24. - A reversible spring-loaded
lock slide 28 is configured to move into one of thelock slide openings 24. Once thelock slide 28 is inside,lock cam 18 is prevented from moving due to the contact with anend 33 of thelock slide 28. Thelock cam 18 is provided with twostops 29 in order to allow for only 90 degrees of rotation of thelock cam 18. Of course, lockcam 18 can be configured without these twostops 29 in order to allow thelock cam 18 to rotate 360 degrees, and with any number or spacing ofopenings 24. -
Handle assembly 10 also includes acompression spring 36 that biases lockslide 28 in an unlocking direction. Bothspring 36 and lock slide 28 are at least partially contained within spring-loadedslide case 38.Lock slide 28 is moveable relative to the spring-loadedslide case 38. Spring-loadedslide case 38 is attached totray 12 via tworivets 26. Thespring 36 is configured withinlock slide 28 and contacts spring-loadedslide case 38 at aflange 54 extending fromslide case 38.Spring 36 biases lockslide 28 into a position away from thelock cam 18. In such a fully biased position, lockslide 28 is completely removed from thelock slide openings 24 and hence lockcam 18 is free to rotate relative totray 12, at least within the limits ofstops 29. Whenspring 36 is compressed,lock slide 28 may move into one of thelock slide openings 24. Such a situation results in lockage oflock cam 18. - The mechanism used to compress
spring 36 is shown in FIG. 1 aslock arm 30.Lock arm 30 is connected to and rotates withlock cylinder 32.Lock cylinder 32 is connected totray 12 bynut 34. Actuation of thelock cylinder 32 causes lockarm 30 to rotate. Rotation towards a planar surface onlock slide 28 eventually results in contact between the two. Further rotation results in a compression ofspring 36 and movement oflock slide 28 towards thelock cam 18. If alock slide opening 24 is aligned with thelock slide 28, thelock slide 28 will enter thelock slide opening 24 and lock the handle assembly. Rotation of thelock arm 30 away from the planar surface oflock slide 28 causes thelock slide 28 to move linearly away fromlock cam 18. This eventually results in thelock slide 28 being removed from thelock slide opening 24 and hence allows thelock cam 18 and latchingarm 20 to rotate. - FIG. 2 shows a partial sectional side view taken along line2-2 of FIG. 1. Latching
arm 20 is shown as having a curved section, although it is to be understood that the latchingarm 20 may be of various configurations.Lock cam 18 is attached to theshaft 14 by anut 16 andwasher 46 combination. Thehandle 40 shown in FIG. 2 is a D-shaped handle having a section being angled away from thetray 12. Ahandle connection arrangement 42 is shown being used to attachhandle 40 to theshaft 14.Handle 40 can be rotated away fromtray 12 out of the compartment intray 12 and then rotated about the shaft. Ahandle biasing assembly 44 is provided to allow for a smooth outward movement and rotation ofhandle 40. Ahandle biasing assembly 44 is also used to properly space thelock cam 18 fromtray 12. - FIG. 3 shows an enlarged view of the lock slide assembly of FIG. 1. FIG. 3 shows the
lock cam 18 in both a locked and an unlocked arrangement. Shown in solid lines, when thelock arm 30 is rotated away from thelock cam 18 thelock slide 28 also moves away fromlock cam 18 due to thespring 36 biasing force until thelock slide 28contacts flange 54. In such an arrangement,lock cam 18 is free to rotate relative totray 12. Shown in phantom lines, when thelock arm 30 is rotated towards thelock cam 18, thelock slide 28 is forced intolock slide opening 24. In such aconfiguration spring 36 is compressed.Lock slide 28 is shown in phantom lines being placed inside oflock slide opening 24 and hence locking thelock cam 18 and preventing it from rotating relative totray 12. - FIG. 4 shows an exploded perspective view of the reversible spring-loaded
lock slide assembly 46 of the present invention.Lock slide 28 is shown as having twocavities 48. Awall 50 separates these twocavities 48. Acontact member 52 is provided at one end oflock slide 28 and contacts both thewall 50 and also the twocavities 48. A spring-loadedslide case 38 is provided with twoholes 39.Rivets 26 are inserted into these twoholes 39 to connect the spring-loadedslide case 38 to another structure.Spring 36 is housed within one of thecavities 48.Spring 36 is engaged on one end againstcontact member 52 and on the other end againstflange 54. - Referring back to FIG. 2, it can be seen that
lock arm 30 engages thelock slide 28 at thecontact member 52. This engagement occurs at one end of thecontact member 52. If it were the case that lockcylinder 32 were longer it could be the case that lockarm 30 would not engagecontact member 52 at all. In order to compensate for various lengths of lock cylinders, and also for various depths and sizes oftray 12, the present invention allows for a user to reconfigure the reversible spring-loadedlock slide assembly 46 so that thelock arm 30 engagescontact member 52 of thelock slide 28. This adjustment is found by way of inverting the position of thelock slide 28 and positioning thespring 36 within thesecond cavity 48. As can be seen from FIG. 4, reversal of thelock slide 28 so that theopposite cavity 48 is used results in the direction of extension of thecontact member 52 also being reversed. This reversal ofcontact member 52 allows for a change in its position relative to thelock arm 30. Such a position change would be necessary in order to ensure engagement of thelock arm 30 andcontact member 52 if various sizes oflock cylinders 32 and 104trays 12 are used. Additionally, this reversal allows for other dimensional variations to be compensated for. - FIG. 5 shows an alternative embodiment of the handle assembly for use in opening a compartment of the present invention. The drawing shows a back view of such an assembly. The handle assembly of FIG. 5 differs from the handle assembly of FIG. 1 in that the
lock cam 18 andshaft 14 are slightly different.Lock cam 18 is here provided with fourlock slide openings 24.Shaft 14 is different in that it provides for alock key 60 to attach thelock cam 18 toshaft 14. In FIG. 1, this attachment arrangement consists of anut 16 being used to attachshaft 14 to lockcam 18. - FIG. 6 is a partial sectional side view of the handle assembly of FIG. 5 taken along line6-6 of FIG. 5. The
handle 40 is shown in this drawing as a D-ring handle. The D-ring handle 40 is connected to theshaft 14 through aconnection arrangement 42. Alock cam spacer 56 is provided to appropriately space thelock cam 18 fromtray 12. A key 58 is shown inserted intolock cylinder 32 in order to actuatelock cylinder 32 and hence rotatelock arm 30. Engagement oflock arm 30 withlock slide 28 causes thelock slide 28 to move into or out of one of the fourlock slide openings 24. The position oflock slide 28 is the same, relative to theslide case 38, in FIGS. 2 and 6. - FIG. 7 is an alternative embodiment of the handle assembly of the present invention. Latching
arm 20 is shown in this drawing as being a single arm extending fromlock cam 18. Unlike the latching arm of FIG. 1, the latching arm in FIG. 7 does not have a curved section. Also, alock key 60 is used in place of thenut 16 to attach thelock cam 18 ontoshaft 14. The lock slide assembly used in FIG. 7 is similar to that discussed in the previous embodiments, although the position oflock slide 28 is reversed. - FIG. 8 shows a partial sectional side view of the handle assembly of FIG. 7 taken along line8-8 of FIG. 7. The
handle 40 used in this embodiment is a folding T-lock handle. Such a handle rotates about theconnection 42 toshaft 14.Connection 42 is shown in this drawing as a pin which allows the folding T-lock handle 40 to rotate out of thetray 12. Once rotated out, folding T-lock handle 40 can be rotated by a user. Ahandle biasing assembly 44 is provided to allow for a smooth removal and rotation of the folding T-lock handle 40. - The reversible spring-loaded
lock slide assembly 46 is reversed in the embodiment shown in FIG. 8 from that embodiment shown in FIG. 6. This is due to the fact thatlock arm 30 does not extend past the recess intray 12 in FIG. 8. Reversal of thelock slide 28 allows thelock arm 30 to engage thecontact member 52. As can be seen, the same reversible spring-loadedlock slide assembly 46 can be used on different assemblies having various locations of thelock arm 30 and lock cam 18 (due to the depth of the recess in tray 12). Using thesame assembly 46 on different handles allows for a more economical, modularized, and uniform product. - It will be appreciated that various modifications and changes may be made to the above described preferred embodiments of a reversible spring-loaded lock slide assembly and a handle assembly without departing from the scope of the following claims.
Claims (19)
1. A handle assembly for use in opening a compartment, the assembly comprising:
a tray having opposite sides;
a shaft rotatably extending through the tray;
a handle connected to the shaft so as to rotate the shaft relative to the tray, the handle being on one side of the tray;
a lock cam connected to the shaft so as to rotate with the shaft relative to the tray, the lock cam being on an opposite side of the tray, the lock cam having at least one lock slide opening;
a reversible spring loaded lock slide assembly having a lock slide, the lock slide having a body with an end movable into the lock slide opening to lock the lock cam, the lock slide having a contact member extending substantially perpendicular to the lock slide body on one end of the lock slide, the lock slide being mountable within the lock slide assembly in two orientations;
a spring used to bias the lock slide in an unlocking direction; and
a lock arm engageable with the contact member of the lock slide, engagement of the lock arm and the contact member urging the lock slide in a locking direction.
2. A handle assembly of claim 1 , further comprising a lock cylinder engaging the lock arm, rotation of the lock cylinder causes the lock arm to rotate.
3. The handle assembly of claim 1 , wherein the lock arm has an end that is rounded.
4. The handle assembly of claim 1 , wherein the contact member of the lock slide has a planar surface.
5. The handle assembly of claim 1 , wherein the spring biases the lock slide away from the lock slide opening.
6. The handle assembly of claim 1 , wherein the handle is D-shaped.
7. The handle assembly of claim 1 , wherein the handle is T-shaped and the handle is capable of being placed inside the tray.
8. The handle assembly of claim 1 , further comprising a spring loaded slide case attached to one side of the tray, the lock slide is in sliding engagement with the spring loaded slide case, and wherein the spring at one end contacts the spring loaded slide case.
9. The handle assembly of claim 8 , further comprising a lock cylinder connected to the tray and connected to the lock arm.
10. A reversible spring loaded lock slide assembly for use in locking a door latch comprising:
a spring loaded slide case;
a lock slide in sliding engagement with the spring loaded slide case having a first cavity and a second cavity, the lock slide has a contact member at one end capable of being placed in two orientations; and
a spring biasing the lock slide relative to the spring loaded slide case.
11. The reversible spring loaded lock slide assembly of claim 10 , wherein the spring is contained within one of the cavities and engages the spring loaded slide case at one end of the spring.
12. The reversible spring loaded lock slide assembly of claim 11 , wherein the contact member has a planar surface.
13. A handle assembly for use in opening a compartment comprising:
a tray having opposite sides;
a shaft rotatably extending through the tray;
a handle connected to the shaft so as to rotate the shaft relative to the tray, the handle being on one side of the tray;
a lock cam connected to the shaft so as to rotate with the shaft relative to the tray, the lock cam being on an opposite side of the tray, the lock cam having at least one lock slide opening;
a spring loaded slide case connected to the tray;
a reversible spring loaded lock slide assembly having a lock slide, the lock slide having a body with an end movable into the lock slide opening in order to lock the lock cam, the lock slide having at least two cavities and having a contact member at one end, the lock slide being in sliding engagement with the spring loaded slide case and capable of engaging the spring-loaded slide case in two orientations;
a spring biasing the lock slide relative to the spring loaded slide case; and
a lock arm having a cam surface, the cam surface engageable with the contact member of the lock slide, engagement of the lock arm with the lock slide causes the lock slide to be urged in a direction opposite to the bias of the spring.
14. The handle assembly of claim 13 , further comprising a lock cylinder engaging the lock arm, rotation of the lock cylinder causes the lock arm to rotate.
15. The handle assembly of claim 14 , wherein the lock cylinder is connected to the tray.
16. The handle assembly of claim 13 , wherein the contact member of the lock slide has a planar surface.
17. The handle assembly of claim 13 , wherein the spring is contained within one of the cavities and engages the spring loaded slide case at one end of the spring, the spring biases the lock slide away from the lock slide openings.
18. The handle assembly of claim 13 , wherein the handle is D-shaped.
19. The handle assembly of claim 13 , wherein the handle is T-shaped and the handle is capable of being placed inside the tray.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/025,297 US6666053B2 (en) | 2001-12-19 | 2001-12-19 | Reversible spring-loaded lock slide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/025,297 US6666053B2 (en) | 2001-12-19 | 2001-12-19 | Reversible spring-loaded lock slide |
Publications (2)
Publication Number | Publication Date |
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US20030110819A1 true US20030110819A1 (en) | 2003-06-19 |
US6666053B2 US6666053B2 (en) | 2003-12-23 |
Family
ID=21825194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/025,297 Expired - Lifetime US6666053B2 (en) | 2001-12-19 | 2001-12-19 | Reversible spring-loaded lock slide |
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US (1) | US6666053B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20050086984A1 (en) * | 2003-10-10 | 2005-04-28 | Deo Errani | Electric lock with multiple-function spring |
US20050092046A1 (en) * | 2003-10-10 | 2005-05-05 | Cisa S.P.A. | Electric lock with magnetic support of the coupling element |
US20200071974A1 (en) * | 2018-08-31 | 2020-03-05 | Hansen International, Inc. | Multifunction Securing Mechanism for Door |
US20220056736A1 (en) * | 2020-08-24 | 2022-02-24 | Dezhao Xiang | Dead-locking control mechanism for door lock |
US11466488B2 (en) * | 2019-02-14 | 2022-10-11 | Robert Paul Gardner | Door latch |
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US7740291B2 (en) * | 2001-09-10 | 2010-06-22 | Owen Baser | Door handle assembly |
US6976375B2 (en) * | 2004-05-21 | 2005-12-20 | Fastec Industrial Corp. | Door latch with adjustable latch element |
US7398664B1 (en) | 2005-03-14 | 2008-07-15 | The Eastern Company | Handle and housing assembly |
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US7752877B2 (en) * | 2007-03-06 | 2010-07-13 | Hanson International, Inc. | Rotary actuation latch with disconnect feature |
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US8915105B2 (en) * | 2012-09-21 | 2014-12-23 | The Eastern Company | Latch assembly |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050086984A1 (en) * | 2003-10-10 | 2005-04-28 | Deo Errani | Electric lock with multiple-function spring |
US20050092046A1 (en) * | 2003-10-10 | 2005-05-05 | Cisa S.P.A. | Electric lock with magnetic support of the coupling element |
US7168276B2 (en) * | 2003-10-10 | 2007-01-30 | Cisa S.P.A. | Electric lock with multiple-function spring |
US7188495B2 (en) * | 2003-10-10 | 2007-03-13 | Cisa S.P.A. | Electric lock with magnetic support of the coupling element |
CN1607307B (en) * | 2003-10-10 | 2011-05-18 | 西莎股份公司 | Electric lock with magnetic bearing connected with element |
US20200071974A1 (en) * | 2018-08-31 | 2020-03-05 | Hansen International, Inc. | Multifunction Securing Mechanism for Door |
US11578516B2 (en) * | 2018-08-31 | 2023-02-14 | Hansen International, Inc. | Multifunction securing mechanism for door |
US11466488B2 (en) * | 2019-02-14 | 2022-10-11 | Robert Paul Gardner | Door latch |
US20220056736A1 (en) * | 2020-08-24 | 2022-02-24 | Dezhao Xiang | Dead-locking control mechanism for door lock |
Also Published As
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US6666053B2 (en) | 2003-12-23 |
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